4.10.17 Form control infrastructure4.10.17.1 A form control's value4.10.17.2 Mutability4.10.17.3 Association of controls and forms4.10.18 Attributes common to form controls4.10.18.1 Naming form controls: the name attribute4.10.18.2 Submitting element directionality: the dirname attribute4.10.18.3 Limiting user input length: the maxlength attribute4.10.18.4 Setting minimum input length requirements